Induction welded waterproofing

Abstract

In accordance with an embodiment of the disclosure, A water-proofing laminate includes a drainboard having a first surface positioned against a hydraulic source and a second surface opposed to the first surface, a fastener plate positioned against the second surface of the drainboard securing the drainboard to the hydraulic surface, the fastener plate comprising a conductive element and a thermoplastic resin, and a self-healing hydraulic barrier comprising a thermoplastic surface adjoined to a geotextile and carrying a water-absorbent material, the thermoplastic surface inductively welded to the fastener plate.

What is claimed: 
     
       1. A method of waterproofing a tunnel comprising:
 positioning a drainage material against at least one of a tunnel wall and a ceiling, the drainage material have a first surface positioned against the at least one of the tunnel wall and the ceiling and a second surface exposed; 
 attaching the drainage material to the at least one of the tunnel wall and the ceiling with a plurality of fastener plates disposed on the drainage material and fixing members that extend through the fastener plates and the drainage material and into the at least one of the tunnel wall and the ceiling, the fastener plates comprising a conductive element and a thermoplastic resin; and 
 inductively welding a self-healing hydraulic barrier to the fastener plates, the self-healing hydraulic barrier comprising a water-impermeable thermoplastic layer adjoined to a water-absorbent material and a geotextile. 
 
     
     
       2. The method of  claim 1  further comprising applying shotcrete against bored rock in a tunnel to form at least one of a smoothed tunnel wall and a smoothed ceiling; and curing the shotcrete; wherein the drainage material is positioned against the at least one of the smoothed tunnel wall and the smoothed ceiling. 
     
     
       3. The method of  claim 1  further comprising applying concrete against the geotextile to form at least one of an interior tunnel wall and an interior ceiling; and curing the concrete. 
     
     
       4. The method of  claim 3  further comprising applying a water-stop to all concrete joints. 
     
     
       5. The method of  claim 1  further comprising positioning the drainage material against the tunnel floor, the drainage material have a first surface positioned against the tunnel floor and a second surface exposed; and
 covering the drainage material with the self-healing hydraulic barrier by positioning the water-impermeable thermoplastic layer against the drainage material. 
 
     
     
       6. A method of applying a water-proofing laminate to at least one of a retaining wall and a shoring wall comprising:
 positioning a drainage material against at least one of the retaining wall and the shoring wall, the drainage material have a first surface positioned against the at least one of the retaining wall and the shoring wall and a second surface exposed; 
 attaching the drainage material to the at least one of the retaining wall and the shoring wall with a plurality of fastener plates disposed on the drainage material and fixing members that extend through the fastener plates and the drainage material, and into the at least one of the retaining wall and the shoring wall, the fastener plates comprising a conductive element and a thermoplastic resin; and 
 inductively welding a self-healing hydraulic barrier to the fastener plates, the self-healing hydraulic barrier comprising a water-impermeable thermoplastic layer adjoined to a water-absorbent material and a geotextile. 
 
     
     
       7. The method of  claim 6  further comprising applying concrete against the geotextile to form a water-proofed sub-grade wall; and curing the concrete; wherein the concrete binds to the geotextile.